How many times this scenario happened to every steemian from long forgotten era of 2016. We had 2 year powerdown back then, but Steem inflation was 100% which created a bunch more SP for SP holders. Things changed to 3months powerdown and 10% inflation, but the problem for every powered up individual lies in problematic short lasted "top" where price stays for maximum 2 weeks, most people missed the opportunity to sell on top. 2 reasons why, they don't know the markets and they were locked with their SP.

Funny thing is even though the price still dropped, those that could of benefited the most from the top, aka steem believers, minnows, dolphin SP holders, without liquid steem just couldn't reap the benefits of that top, meanwhile whales with huge stakes raked all the money. System in that regard is broken, you just can't cash out SP effectively, only those with liquid Steem stored in exchanges sell walls can.

If there is some tool like you suggest that could ease that power down period that would allow a user to try to hit the price close to the top would be most welcome. But in short term that would probably crash the price even more, thus making the rest who are still fully powered up very cranky.